trivial typo R-exts.texi

Dear list,

Please find below a trivial patch to
R-exts.texi

Kind regards,
Tobias


Index: R-exts.texi

===================================================================

--- R-exts.texi	(revision 42789)

+++ R-exts.texi	(working copy)

@@ -8874,7 +8874,7 @@

  reasons it calls @code{predict.lm} directly, but in principle (and in S
  originally and currently) it could use @code{NextMethod}.
  (@code{NextMethod} seems under-used in the @R{} sources.  Do be aware
-that there as S/R differences in this area, and the example above works
+that there are S/R differences in this area, and the example above works
  because there is a @emph{next} method, the default method, not that a
  new method is selected when the class is changed.)

Tobias Verbeke - Consultant
Business & Decision Benelux
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